According to an​ airline, flights on a certain route are on time 85​% of the time. Suppose 17 flights are randomly selected and the number of​ on-time flights is recorded. Answer the following. Show all work as demonstrated in​ lecture, showing what you input into your calculator to attain results.   ​(a) Find the probability that exactly 12 flights are on time. ​(b) Find the probability that fewer than 12 flights are on time. ​(c) Find the probability that at least 12 flights are on time. ​(d) Find the probability that between 10 and 12 ​flights, inclusive, are on time.

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A: given data  n(total) = 400 n(A in statistics) = 90 n(A in psychology) = 68 n(A in both) = 31

Q: Consider the variable Joe’s weight next Friday. What is the probability he weighs 170 pounds, the…

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Q: c. You play card game and select two cards from 52 - card deck without replacement. Probability that…

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Q: Jeremy sells a magazine which is produced in order to raise money for homeless people. The…

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Q: A baseball player has a batting average of 0.36. What is the probability that he has exactly 4 hits…

A: Given that Number of trials n=7 Success of probability p=0.36 X~bin(n,p)

Q: In a large population, 52 % of the people have been vaccinated. If 5 people are randomly selected,…

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Q: A pharmacist receives a shipment of 2121 bottles of a drug and has 44 of the bottles tested. If 66…

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Q: Suppose that 38% of people own dogs. If you pick two people at random, what is the probability that…

A: Given that, Probability, p = 38% = 0.38 Sample size = 2

Q: Studies show that seven percent of adults live to age of 110. You randomly select five adults. Find…

A: Obtain the probability that at least two of them will live until age of 110. The probability that at…

Q: The probability that a student owns a car is 0.7. The probability that a student owns a computer is…

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Q: The Clippers basketball team are predicted to win 90% of their games during the playoffs.  If this…

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Q: Poppy and her teammates are each chewing a piece of tropical flavoured gum before their championship…

A:

Q: A newspaper report states that the probability of snow is .3. After calling the airport you are told…

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Q: Tyee recorded the grade-level and instrument of everyone in the middle school School of Rock below.…

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Q: survey found that 75% of women in a given city enjoy shopping online. Suppose you randomly selected…

A:

Q: According to a study, airline fatalities occur at the rate of 3.05 fatal accidents per 100 millions…

A: Let X be the number fatal accident Let rate =λ X~Pois(λ=3.05)

Q: You roll a die five times. What is the probability that you will see a string of three or more…

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Q: Researchers are concerned about the rise in drinking behaviors among adolescents aged 13- 17 in a…

A: From the provided information, The research team estimates the prevalence of such behaviors is 17%…

Q: Based on Julie's Semester 1 Mathematics 1 Quiz scores, the probability that Julie obtains a perfect…

A: Given data P(perfect score) =p = 0.7no. of trials (n) = 6X = no. of quiz julie obtains perfect score

Q: Suppose that 42% of people are on low calorie diet. If you pick three people at random, what is the…

A:

Q: Joe decided to spend his day fishing. He knows that the probability that a single cast will be a…

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Q: The​ (hypothetical) table below shows the relationship between the number of hours students work at​…

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.